I want to buy a tennis racquet for my boyfriend as a christmas gift, but i do not know much how to choose it.

By the way, my boyfriend is quite a good player. He has played tennis for more than 10 years. And he is quite strong but not very tall. I think he is a power player.

This is what my friend recommend to me, so, could you help me to choose one?

http://www.opentip.com/index.php?cPath=1_4_128

IS it right that the most expensive one is the best? But I need a most suitable one.

Also, could you tell me some good online sporting goods stores? I want to order online.

Thanks!